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Start Over Subjects Light ✖Remove constraint Subjects: Light Titles A dissertation on light and vision: defended before the Medical Society of Philadelphia, in the year 1809 ✖Remove constraint Titles: A dissertation on light and vision: defended before the Medical Society of Philadelphia, in the year 1809 Languages English ✖Remove constraint Languages: English

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  • A dissertation on light and vision: defended before the Medical Society of Philadelphia, in the year 18091